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题库 / OG2017V-SC-233
Nearly two tons of nuclear-reactor fuel have already been put into orbit around the Earth, and the chances of a collision involving such material increase greatly as the amount of both space debris and satellites continue to rise.
as the amount of both space debris and satellites continue to rise
as the rise continues in both the amount of satellites and space debris
as the amount of space debris and the number of satellites continue to rise
with the continually increasing amount of space debris and the number of satellites
with the amount of space debris continuing to increase along with the number of satellites
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Because debris is not a countable noun, it must be described as an amount;
satellites are countable,so they must be referred to as a number, not an amount.
D.主要的错误the number of satellites前面没有increasing的修饰， This leaves the function of and the
number of satellites uncertain and confusing.
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